GB1284529A - Method and means for compensating birefringence in laser systems - Google Patents

Method and means for compensating birefringence in laser systems

Info

Publication number
GB1284529A
GB1284529A GB61942/70A GB6194270A GB1284529A GB 1284529 A GB1284529 A GB 1284529A GB 61942/70 A GB61942/70 A GB 61942/70A GB 6194270 A GB6194270 A GB 6194270A GB 1284529 A GB1284529 A GB 1284529A
Authority
GB
United Kingdom
Prior art keywords
rod
birefringence
disc
compensated
laser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB61942/70A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1284529A publication Critical patent/GB1284529A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08072—Thermal lensing or thermally induced birefringence; Compensation thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Lenses (AREA)

Abstract

1284529 Lasers UNION CARBIDE CORP 31 Dec 1970 [11 Feb 1970] 61942/70 Heading HlC Birefringence in a laser rod induced by thermal stress is compensated by passing the laser beam through a medium having opposite thermal stresses. In Fig. 7, a solid rod 10 is pumped by a flashlamp 11, and is surface cooled; its inner regions are thus hotter than its outside surface and the resulting stress causes birefringence. A disc 16 of a material similar to that of rod 10 but lacking lasing ions is adjustably heated by resistance elements 18 on a metal ring 17. Since the temperature gradient of the disc is the inverse of the rod, the birefringence effects cancel. The compensated beam is stated to be suitable for electro-optic Q switching if the rod output is linearly polarized; otherwise a separate polarizer would be needed in the resonator.
GB61942/70A 1970-02-11 1970-12-31 Method and means for compensating birefringence in laser systems Expired GB1284529A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1040170A 1970-02-11 1970-02-11
US1051370A 1970-02-11 1970-02-11

Publications (1)

Publication Number Publication Date
GB1284529A true GB1284529A (en) 1972-08-09

Family

ID=26681125

Family Applications (2)

Application Number Title Priority Date Filing Date
GB61943/70A Expired GB1284530A (en) 1970-02-11 1970-12-31 Method and means for compensating thermal lensing in a laser system
GB61942/70A Expired GB1284529A (en) 1970-02-11 1970-12-31 Method and means for compensating birefringence in laser systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB61943/70A Expired GB1284530A (en) 1970-02-11 1970-12-31 Method and means for compensating thermal lensing in a laser system

Country Status (4)

Country Link
US (2) US3662281A (en)
DE (2) DE2102115A1 (en)
FR (2) FR2079364A1 (en)
GB (2) GB1284530A (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675152A (en) * 1970-06-24 1972-07-04 American Optical Corp Compensator for a radial refractive-index gradient in a disc laser
US3817604A (en) * 1973-01-03 1974-06-18 Atomic Energy Commission Method of focusing a high-powered laser beam
US4111564A (en) * 1973-02-08 1978-09-05 Trice Jr James R Reference plane production
JPS6016115B2 (en) * 1980-01-21 1985-04-23 オ−ストラリア国 Birefringent coupled laser
US4408334A (en) * 1981-03-13 1983-10-04 The United States Of America As Represented By The Secretary Of The Navy Waveplate for correcting thermally induced stress birefringence in solid state lasers
JPS5987436A (en) * 1982-11-11 1984-05-21 Matsushita Electric Ind Co Ltd Optical valve
US4872743A (en) * 1983-04-18 1989-10-10 Canon Kabushiki Kaisha Varifocal optical element
US4865426A (en) * 1983-04-19 1989-09-12 Canon Kabushiki Kaisha Variable aberration imaging optical system
US4848881A (en) * 1984-12-03 1989-07-18 Hughes Aircraft Company Variable lens and birefringence compensator
EP0202322B1 (en) * 1984-12-03 1991-05-08 Hughes Aircraft Company Variable lens and birefringence compensator for continuous operation
JPS62501315A (en) * 1984-12-03 1987-05-21 ヒユ−ズ・エアクラフト・カンパニ− Improved variable lens and birefringence compensator for continuous operation
US4671624A (en) * 1985-03-25 1987-06-09 Hughes Aircraft Company Variable lens and birefringence compensator for continuous operation
US4679937A (en) * 1985-10-18 1987-07-14 Spectra-Physics, Inc. Self leveling transmitter for laser alignment systems
US4730324A (en) * 1986-10-02 1988-03-08 General Electric Company Method and apparatus for compensating for wave front distortion in a slab laser
US4800569A (en) * 1987-11-30 1989-01-24 General Electric Company Reflector design for a slab laser
US4935932A (en) * 1988-08-15 1990-06-19 Spectra-Physics, Inc. Apparatus using induced birefringence to improve laser beam quality
GB8912765D0 (en) * 1989-06-02 1989-07-19 Lumonics Ltd A laser
US5443506A (en) * 1992-11-18 1995-08-22 Garabet; Antoine L. Lens with variable optical properties
US5907574A (en) * 1996-06-19 1999-05-25 Esc Medical Systems Ltd. High power infrared laser system
EP1168532A1 (en) * 2000-06-23 2002-01-02 Universität Bern Method for compensating thermo-optic effects
ES2544034T3 (en) 2011-09-05 2015-08-27 ALLTEC Angewandte Laserlicht Technologie Gesellschaft mit beschränkter Haftung Marking apparatus with at least one gas laser and one thermodisipator
DK2565994T3 (en) 2011-09-05 2014-03-10 Alltec Angewandte Laserlicht Technologie Gmbh Laser device and method for marking an object
EP2564975B1 (en) * 2011-09-05 2014-12-10 ALLTEC Angewandte Laserlicht Technologie Gesellschaft mit beschränkter Haftung Marking apparatus with a plurality of lasers and individually adjustable sets of deflection means
ES2530069T3 (en) * 2011-09-05 2015-02-26 ALLTEC Angewandte Laserlicht Technologie Gesellschaft mit beschränkter Haftung Marking apparatus with a plurality of lasers and a combination deflection device
EP2564972B1 (en) * 2011-09-05 2015-08-26 ALLTEC Angewandte Laserlicht Technologie Gesellschaft mit beschränkter Haftung Marking apparatus with a plurality of lasers, deflection means and telescopic means for each laser beam
ES2444504T3 (en) 2011-09-05 2014-02-25 ALLTEC Angewandte Laserlicht Technologie Gesellschaft mit beschränkter Haftung Laser device with a laser unit, and a fluid container for cooling means of said laser unit
EP2565673B1 (en) 2011-09-05 2013-11-13 ALLTEC Angewandte Laserlicht Technologie Gesellschaft mit beschränkter Haftung Device and method for marking of an object by means of a laser beam
ES2544269T3 (en) * 2011-09-05 2015-08-28 ALLTEC Angewandte Laserlicht Technologie Gesellschaft mit beschränkter Haftung Marking apparatus with a plurality of gas lasers with resonance tubes and deflection means individually adjustable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484714A (en) * 1964-12-16 1969-12-16 American Optical Corp Laser having a 90 polarization rotator between two rods to compensate for the effects of thermal gradients

Also Published As

Publication number Publication date
GB1284530A (en) 1972-08-09
US3609584A (en) 1971-09-28
DE2102115A1 (en) 1971-08-26
FR2079364A1 (en) 1971-11-12
US3662281A (en) 1972-05-09
FR2079363B1 (en) 1975-07-04
DE2102114A1 (en) 1971-08-19
FR2079363A1 (en) 1971-11-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees